DuraVent 50' Flex Pipe DuraFlex Pro Stainless Steel Length
The DuraVent 50' Flex Pipe DuraFlex Pro Stainless Steel Length is a premium flexible chimney liner designed for superior strength, flexibility, and reliable masonry chimney relining. Manufactured with highly corrosion-resistant 316 stainless steel, DuraFlex Pro features 20% more stainless steel per foot compared to many traditional liners, providing enhanced durability and long-lasting performance. Its extreme flexibility allows for easy, problem-free installation in chimneys with multiple offsets, making it ideal for wood stoves, fireplace inserts, and solid-fuel appliances. Available in 3-inch through 12-inch diameters, this stainless steel chimney liner is listed to UL 1777 and ULC S635 standards for safe venting applications.
Engineered for professional chimney restoration and venting upgrades, the DuraFlex Pro flexible liner helps maintain efficient flue gas flow, proper chimney draft, and appliance performance. Its rugged stainless steel construction helps protect chimney systems from heat, moisture, and corrosive combustion gases. This 50-foot chimney liner pipe is an excellent choice for residential and commercial chimney relining projects, delivering dependable safety, improved efficiency, and trusted DuraVent quality for long-term venting performance.
Features
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DuraVent DuraFlex Pro 50' Stainless Steel Chimney Liner: Premium 50-foot flexible chimney liner designed for professional masonry chimney relining, fireplace insert installations, and venting system upgrades.
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Durable 316 Stainless Steel Construction: Manufactured with high-quality 316 stainless steel alloy for superior strength, flexibility, and long-lasting corrosion-resistant chimney liner performance.
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Enhanced Corrosion Resistance for Coal Burning: The 316 alloy stainless steel design provides additional protection when burning coal or sulfur-containing oils, helping extend liner service life.
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Ideal for Multiple Offset Installations: DuraFlex Pro’s extreme flexibility makes it the best choice for chimney installations with multiple offsets and challenging venting layouts.
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Compatible with Multiple Fuel Types: Designed for use with solid fuel appliances, non-condensing gas appliances, and oil-fired heating systems.
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Flexible Chimney Pipe for Easy Installation: Allows smooth routing through existing chimney structures while simplifying chimney liner replacement and restoration projects.
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Supports Efficient Chimney Draft: Helps maintain proper flue gas flow, ventilation efficiency, and heating appliance performance.
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Professional Stainless Steel Chimney Relining Solution: Ideal for wood stove liners, fireplace insert chimney liners, masonry chimney repair, and stainless steel venting systems.
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Heat & Moisture Resistant Design: Provides reliable protection against high temperatures, moisture, creosote buildup, and corrosive combustion byproducts.
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UL Listed Flexible Chimney Liner: Meets UL 1777 and ULC S635 standards for safe, durable, and code-compliant chimney vent liner installations
Specifications
| Model |
Size |
Flex Length |
| 3DFPRO-50 |
3" I.D |
50 ft. |
| 4DFPRO-50 |
4" I.D |
50 ft. |
| 5DFPRO-50 |
5" I.D |
50 ft. |
| 55DFPRO-50 |
5.5" I.D |
50 ft. |
| 6DFPRO-50 |
6" I.D |
50 ft. |
| 7DFPRO-50 |
7" I.D |
50 ft. |
| 8DFPRO-50 |
8" I.D |
50 ft. |
| Materials |
316 stainless steel |
| Construction |
Single-Wall |
| Clearance |
0” clearance for gas, oil, and pellet applications. |
| Clearance |
1” clearance to masonry for wood-burning |
| Listings |
Listed to UL 1777 and ULC S635 (MH45609). |
| Warranty |
Limited-lifetime warranty |
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